Question

在我的程序中有两个datetimepickers。我需要在所选日期之间获取日期并将它们存储到列表或数组中。所有这些都将在第二个datetimepicker值更改事件

中完成

private void dateTimePickertodate_ValueChanged(object sender, EventArgs e)
{
    if (dateTimePickertodate.Value <=dateTimePickerfromdate.Value)
    {
        MessageBox.Show("Choose Correct date");
        textBoxnumofdays.Clear();
    }
    else
    {
        cleave = new LeaveApplication(constr);
        TimeSpan span = dateTimePickertodate.Value - dateTimePickerfromdate.Value;

        if (Mode == 1)
        {                       
            textBoxnumofdays.Text = Convert.ToString(span.Days + 2);
        }
        else
        {
            textBoxnumofdays.Text = Convert.ToString(span.Days + 1);
        }
    }
}

Answer 1

你可以尝试这些方面的东西

DateTime dtFrom = new DateTime(2011, 02, 5);
DateTime dtTo = new DateTime(2011, 02, 9);
List<DayOfWeek> days = new List<DayOfWeek>();
while (dtTo != dtFrom)
{
   dtFrom = dtFrom.AddDays(1);
   days.Add(dtFrom.DayOfWeek);
}

天将有你的工作日列表（如果这是你想要的那样）

Answer 2

你可以尝试这个来获得两个日期之间的所有指定工作日

    public List<DateTime> GetSelectedDaysInPeriod(DateTime startDate, DateTime endDate, List<DayOfWeek> daysToCheck)
    {
        var selectedDates = new List<DateTime>();

        if (startDate >= endDate)
            return selectedDates; //No days to return

        if (daysToCheck == null || daysToCheck.Count == 0)
            return selectedDates; //No days to select

        try
        {
            //Get the total number of days between the two dates
            var totalDays = (int)endDate.Subtract(startDate).TotalDays;

            //So.. we're creating a list of all dates between the two dates:
            var allDatesQry = from d in Enumerable.Range(1, totalDays)
                              select new DateTime(
                                            startDate.AddDays(d).Year,
                                            startDate.AddDays(d).Month,
                                            startDate.AddDays(d).Day);

            //And extracting those weekdays we explicitly wanted to return
            var selectedDatesQry = from d in allDatesQry
                                   where daysToCheck.Contains(d.DayOfWeek)
                                   select d;

            //Copying the IEnumerable to a List
            selectedDates = selectedDatesQry.ToList();
        }
        catch (Exception ex)
        {
            //Log error
            //...

            //And re-throw
            throw;
        }

        return selectedDates;
    }

Answer 3

此问题已在此处得到解答： http://bytes.com/topic/net/answers/48324-their-method-timespan-time-function

此外，您希望使用TimeSpan的TotalDays属性而不仅仅是当天。

Answer 4

使用TimeSpan.TotalDays

2个DateTimes的差异是TimeSpan，它具有属性TotalDays，即2个日期时间之间的天数

获得2个日期之间的工作日

4 个答案: